Hello, I recently bought a speed build kit for the mighty mini, tiny trainer, along with the power pack a. I built the plane just fine and I have all of the servos hooked up correct but the main motor seems to be having an issue. When the prop is not on the motor, the motor spins fine mostly but stutters some. When the prop is on the motor it always stutters. I’m not really sure what do do about this. Is the ESC bad or something? The connection from the motor to the ESC is fine so I know it isn’t a break in the connection. This is my first plane and I don’t have much RC car experience at all so it would be great if you could help.